Discourse from internee getting great support (6)

I believe the answer is:

confab

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'discourse' is the definition.
(confabbing is a kind of discoursing)

'internee getting great support' is the wordplay.
'internee' becomes 'con' (both can mean an imprisoned person).
'getting' is a charade indicator (letters next to each other).
'great support' becomes 'fab' (I can't justify this - if you can you should give a lot more credence to this answer).
'con'+'fab'='CONFAB'

'from' is the link.

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(Other definitions for confab that I've seen before include "Informal conversation" , "Chatter" , "natter" , "casual conversation" , "gossip" .)

I've seen this clue in The Times.

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